We all know we get a lot of these - some ought to be immediately consigned to the "It's an Instagram filter" bucket & quietly left to rot by the wayside.
Others, however - even though the OP either didn't know what to call it, or didn't bother with a description - can relatively easily be turned into acceptable questions.
The usual problem is the OP never returns, so the question is put on hold, after a barrage of "what do you mean by what's this effect?" comments.
Some of them, even though really 'broad' are really easy to answer - then just back-fill the question & fix the tags to make it more self-contained.
One of this type I recently got lucky on - 10 mins with the camera & an hour in photoshop & the answer space & people seemed to like it; I hit rep cap 3 days in a row so far. Yay for me, lots of invisible internet points;-)
On the other hand, I've spent similar amounts of time on answers that were actually complained about & threatened with down-votes because I hadn't fixed the question first!
I trashed the last one of those, in a huff.
Frankly, that's not really the way to handle things.
If a question can be reasonably well back-filled, whether by the OP [rare] or one of the members, after giving the OP a day or two to see if they come back to do it themselves then I'd have thought we'd want to encourage good answers... or at least good attempts.
Some people learn from 'tutorial style' QA, however simplistic it may be to some of our more experienced members; they may not have even been looking for that specific technique or style, but it just caught their eye on the way past & becomes a new weapon in their arsenal.
Could we perhaps have a policy of "don't hammer the poor bugger, he didn't know any better" & if a decent answer can be added, to add it & then backfill the question after giving them reasonable chance to fix it themselves?
BTW, we know they should have read the help pages first, but the fact is some people are help page readers & some will never be.
Cases in point -
How do I achieve this eye highlight? -3 in the first hour, when all it needed was someone to add 'catchlight, or less technically 'eye highlight'. Admittedly, the original title of "how do I achieve this photo effects" was a non-starter, but it didn't actually take much fixing.
my surprise interweb points win - How can I create this 'medieval look' using an entry-level camera like the Nikon D3300? which started life as "How can i recreate pictures like these using an entry level camera like the Nikon d3300?", another poor title with very little to go on except the pictures themselves - but again, didn't take much to fix.
& the one my earlier gripe was about - which was closed even though it has answers, because no-one backfilled the question - How to achieve this look in Lightroom?
I haven't checked whether any of these could conceivably be closed as dupes etc, but that's a different matter.